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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

15Minutes logo
15Minutes
✓ verifiedPaid

Library of short book summaries, analyses, and audiobooks spanning thousands of nonfiction and fiction titles.

8.8K visits/mo533 saves
AI Summary Generator logo
AI Summary Generator
✓ verifiedFreemium

Free-to-start AI text summarizer with adjustable length and bullet output, aimed at students and writers.

13K visits/mo
Mapify logo
Mapify
✓ verifiedFreemium

AI tool that summarizes PDFs, videos, webpages and audio into editable mind maps and lets you chat with the source content.

812K visits/mo9.0K saves
ChatDOC logo
ChatDOC
✓ verifiedFree

AI assistant extracting and summarizing document info; real adoption.

90K visits/mo15K saves
LightPDF AI logo
LightPDF AI
✓ verifiedFreemium

AI-powered online and desktop PDF suite to edit, convert, OCR, sign, organize and chat with documents across devices.

1.8M visits/mo12K saves
Pricing

No public pricing

Weekly: $3.95/week
Monthly: $11.95/mo
Yearly: $6.74/mo (billed yearly)
Free: $0 (30 one-time AI credits)
Basic: $5.99/mo billed yearly (1,000 credits/month)

No public pricing

No public pricing

Core features
  • Short book summaries and analysis
  • Summary PDFs and audiobooks
  • Personal library to save titles
  • Extensive category browsing
  • Coverage of thousands of books
  • One-click text summarization with word-count limits by plan
  • Paragraph or bullet-point summary formats
  • Choice of summary length (short, medium, long)
  • Advanced editor tool for tweaking output
  • Support for uploading Doc/PDF files
  • Multi-language summarization
  • Summarize PDFs, videos, URLs and audio into mind maps
  • Chat with your documents
  • Translation and summarization in 30+ languages
  • YouTube timestamps and transcription
  • One-click branch expansion
  • Export to image, PDF, Markdown or slides
  • Chat with documents
  • Instant answers with cited sources
  • AI analysis of selected texts/tables
  • Query across multiple documents
  • Supports various file formats
  • Edit, convert and annotate PDFs
  • OCR and scanned-PDF enhancement
  • AI summarize and chat with documents
  • E-signature and document organization
  • Batch processing
  • Cross-platform: Web, Windows, Mac, iOS, Android
Use cases
  • Learning a book's key ideas in minutes
  • Listening to book summaries on the go
  • Deciding which full books to read
  • Studying nonfiction concepts efficiently
  • Summarizing academic papers for literature reviews
  • Condensing long articles or blog posts
  • Creating quick overviews for study notes
  • Processing large volumes of text for content teams
  • Summarize long content for study or work
  • Turn videos into structured notes
  • Brainstorm and organize ideas visually
  • Digest research and documents faster
  • Summarizing long documents
  • Explaining complex concepts
  • Finding key information in seconds
  • Turbocharging research
  • Convert and edit PDFs online or on desktop
  • Summarize or ask questions about documents
  • OCR scanned PDFs into editable text
  • Sign and organize documents across devices
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